From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Order for two types of Champion Spark Plugs.
| Identifier | ExFiles\Box 162\3\ img222 | |
| Date | 17th February 1942 | |
| 6000. To Roy{Sir Henry Royce}/AES. from RMRC. Rm{William Robotham - Chief Engineer}/RC.{R. Childs}6/OH.17.2.42. Will you please order from the Champion Sparking Plug Co :- 3 doz. 8CFR. 18/mm Plugs 6 " L10 14/mm " O/No.753. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||